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<?php |
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namespace Sebdesign\SM\Metadata; |
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use Illuminate\Support\Arr; |
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use SM\SMException; |
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class MetadataStore implements MetadataStoreInterface |
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{ |
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/** |
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* @var array |
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*/ |
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protected $config; |
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public function __construct(array $config) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function graph($key = null, $default = null) |
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{ |
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return $this->get($this->config, $key, $default); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function state($state, $key = null, $default = null) |
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{ |
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foreach ($this->config['states'] as $value) { |
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if ($value['name'] == $state) { |
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return $this->get($value, $key, $default); |
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} |
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} |
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throw new SMException(sprintf( |
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'State "%s" does not exist on graph "%s".', |
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$state, |
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$this->config['graph'] |
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)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function transition($transition, $key = null, $default = null) |
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{ |
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if (! isset($this->config['transitions'][$transition])) { |
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throw new SMException(sprintf( |
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'Transition "%s" does not exist on graph "%s"', |
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$transition, |
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$this->config['graph'] |
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)); |
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} |
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return $this->get($this->config['transitions'][$transition], $key, $default); |
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} |
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/** |
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* Get a metadata value from a subject. |
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* |
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* @param array $subject |
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* @param string|null $key |
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* @param mixed $default |
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* @return mixed |
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*/ |
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protected function get(array $subject, $key, $default) |
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{ |
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$metadata = Arr::get($subject, 'metadata', []); |
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return Arr::get($metadata, $key, $default); |
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} |
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} |
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sebdesign /
laravel-state-machine
